T3-1 (50 Points): In a hot summer day of constant temperature A1 = 100 F, my car overheated to To = 250 F. I pulled it over and waited for 20 minutes to drop the car's temperature to T20-200 F. I found, and moved my car to, a cool garage nearby of temperature A2 = 70F (ignore the moving time and temperature due to move). The car can function properly only at (or below) Tx = 100 F. How much longer should I wait at the garage